Miguel withdrew $20 per week from his bank account for 4 weeks. Which expression shows the change in his account balance?
1 answer:
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Answer:
B
Step-by-step explanation:
given the first 3 terms of the geometric sequence - 4, 20, - 100
with r = =
= - 5
the n th term formula ( explicit formula ) is
=
here r = - 5 and = - 4, hence
= - 4
with n ≥ 1